What is the Greatest Common Factor of 13830 and 13845?

Greatest common factor (GCF) of 13830 and 13845 is 15.

GCF(13830,13845) = 15

We will now calculate the prime factors of 13830 and 13845, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13830 and 13845.

How to find the GCF of 13830 and 13845?

We will first find the prime factorization of 13830 and 13845. After we will calculate the factors of 13830 and 13845 and find the biggest common factor number .

Step-1: Prime Factorization of 13830

Prime factors of 13830 are 2, 3, 5, 461. Prime factorization of 13830 in exponential form is:

13830 = 2¹ × 3¹ × 5¹ × 461¹

Step-2: Prime Factorization of 13845

Prime factors of 13845 are 3, 5, 13, 71. Prime factorization of 13845 in exponential form is:

13845 = 3¹ × 5¹ × 13¹ × 71¹

Step-3: Factors of 13830

List of positive integer factors of 13830 that divides 13830 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 461, 922, 1383, 2305, 2766, 4610, 6915

Step-4: Factors of 13845

List of positive integer factors of 13845 that divides 13830 without a remainder.

1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 2769, 4615

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13830 and 13845. The biggest common factor number is the GCF number.
So the greatest common factor 13830 and 13845 is 15.

Also check out the Least Common Multiple of 13830 and 13845